Portable bi-level, step topped fluid storage tank



FIG. 1 is a side elevation view of a portable bi-level, step topped fluid storage tank constructed in accordance with, and incorporating, our new design, the opposite side elevation being a mirror image;

FIG. 2 is a top plan view of the portable bi-level, step topped fluid storage tank;

FIG. 3 is a front elevation view of the portable bi-level, step topped fluid storage tank; and,

FIG. 4 is a rear elevation view of the portable bi-level, step topped fluid storage tank of the invention. 

The ornamental design for a portable bi-level, step topped fluid storage tank, as shown and described. 